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<head>
  <title>Test DelayNode with maxDelayTime delay - bug 890528</title>
  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<pre id="test">
<script src="webaudio.js" type="text/javascript"></script>
<script class="testbody" type="text/javascript">

const signalLength = 2048;
const delayLength = 1000; // Not on a block boundary
const outputLength = 4096 // > signalLength + 2 * delayLength;

function applySignal(buffer, offset) {
  for (var i = 0; i < signalLength; ++i) {
    buffer.getChannelData(0)[offset + i] = Math.cos(Math.PI * i / signalLength);
  }
}

var gTest = {
  numberOfChannels: 1,
  createGraph: function(context) {
    var buffer = context.createBuffer(1, signalLength, context.sampleRate);
    applySignal(buffer, 0);

    var source = context.createBufferSource();
    source.buffer = buffer;

    const delayTime = delayLength / context.sampleRate;
    var delay = context.createDelay(delayTime);
    delay.delayTime.value = delayTime;

    source.connect(delay);

    source.start(0);
    return delay;
  },
  createExpectedBuffers: function(context) {
    var expectedBuffer = context.createBuffer(1, outputLength, context.sampleRate);
    applySignal(expectedBuffer, delayLength);
    return expectedBuffer;
  },
};

runTest();

</script>
</pre>
</body>
</html>
